iphone通过UIActionSheetDelegate实现警告

iphone通过UIActionSheetDelegate实现警告

原文地址：http://wangjun.easymorse.com/?p=966

在iphone程序中有一些操作需要提醒用户确实要进行，确保用户因手误删除重要数据，下面是一种警告窗口：





实现发放很简单:

在相应的controller的.h中添加UIActionSheetDelegate协议。如：

@interface Stage5ViewController : UIViewController

<UIActionSheetDelegate>

在.m中添加相应的方法即可：

-(IBAction) showActionSheetButtonPressed:(id) sender

{

UIActionSheet *actionSheet = [[UIActionSheet alloc]

initWithTitle:@”Congratulation. You have completed the elimination diet and food challenge test. Do you want to share your progress with friends?”

delegate:self

cancelButtonTitle:@”Cancel”

destructiveButtonTitle:nil

otherButtonTitles:@”Facebook”,@”Twitter”,nil ];

[actionSheet showInView:self.view];//参数指显示UIActionSheet的parent。

[actionSheet release];

}

-(void) actionSheet : (UIActionSheet *) actionSheet didDismissWithButtonIndex:(NSInteger) buttonIndex

{

switch (buttonIndex) {

case 0:

NSLog(@”facebook”);

break;

case 1:

NSLog(@”twitter”);

break;

default:

break;

}

}

在相应的函数中调用showActionSheetButtonPressed即可。